注册失败显示未知错误

Resolved [org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'; nested exception is java.lang.NumberFormatException: For input string: "undefined"]

应该是验证码出现了问题，但是不知道是什么问题

telphone =123& otpCode =java.util.Random@4c6126f6